/Engine/Source/Runtime/Core/Public/Math/Vector4.h
Initialize this Vector based on anFString. The String is expected to contain X=, Y=, Z=, W=. TheTVector4will be bogus when InitFromString returns false.
true if the X,Y,Z values were read successfully; false otherwise.
bool InitFromString ( const [FString](API\Runtime\Core\Containers\FString) & InSourceString )